Home / 20,127,573.74-30,163,428.38-9,170,986.91

Finding the Fourth Proportional to 20,127,573.74, 30,163,428.38 and 9,170,986.91

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Solution

The fourth proportional to 20,127,573.74, 30,163,428.38 and 9,170,986.91 is: 13,743,753.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127,573.74 : 30,163,428.38 = 9,170,986.91 : x
  2. Step 2: Convert to fraction form
    20,127,573.74/30,163,428.38 = 9,170,986.91/x
  3. Step 3: Cross multiply
    20,127,573.74x = 30,163,428.38 × 9,170,986.91
  4. Step 4: Simplify right side
    20,127,573.74x = 276,628,406,705,812.81
  5. Step 5: Solve for x
    x = 276,628,406,705,812.81/20,127,573.74
  6. Step 6: Final answer
    x = 13,743,753.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.